/*
 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * $Id: OutputPropertyUtils.java,v 1.2.4.1 2005/09/15 08:15:21 suresh_emailid Exp $
 */
package com.sun.org.apache.xml.internal.serializer;

import java.util.Properties;

/**
 * This class contains some static methods that act as helpers when parsing a
 * Java Property object.
 *
 * This class is not a public API.
 * It is only public because it is used outside of this package.
 *
 * @xsl.usage internal
 * @see java.util.Properties
 */
public final class OutputPropertyUtils {

  /**
   * Searches for the boolean property with the specified key in the property list.
   * If the key is not found in this property list, the default property list,
   * and its defaults, recursively, are then checked. The method returns
   * <code>false</code> if the property is not found, or if the value is other
   * than "yes".
   *
   * @param key the property key.
   * @param props the list of properties that will be searched.
   * @return the value in this property list as a boolean value, or false if null or not "yes".
   */
  public static boolean getBooleanProperty(String key, Properties props) {

    String s = props.getProperty(key);

    if (null == s || !s.equals("yes")) {
      return false;
    } else {
      return true;
    }
  }

  /**
   * Searches for the int property with the specified key in the property list.
   * If the key is not found in this property list, the default property list,
   * and its defaults, recursively, are then checked. The method returns
   * <code>false</code> if the property is not found, or if the value is other
   * than "yes".
   *
   * @param key the property key.
   * @param props the list of properties that will be searched.
   * @return the value in this property list as a int value, or 0 if null or not a number.
   */
  public static int getIntProperty(String key, Properties props) {

    String s = props.getProperty(key);

    if (null == s) {
      return 0;
    } else {
      return Integer.parseInt(s);
    }
  }

}
